Development

VaultWarden is released under the AGPL 3.0 license.  VaultWarden is an open-source implementation of the BitWarden API, making it compatible with all BitWarden official apps.  An active VaultWarden developers is an employee of BitWarden and contributes in their free time.

You can learn more about how to contribute to VaultWarden through their documentation.  The lead developer also accepts sponsorships.